Johnsen, Kay-Martin; Goll, Rasmus; Hansen, Vegar; Olsen, Trine; Rismo, Renathe; Heitmann, Richard; Gundersen, Mona Dixon; Kvamme, Jan-Magnus; Paulssen, Eyvind Jakob; Kileng, Hege mfl.. 2017, European Journal of Gastroenterology and Hepathology. UIT, UNN, TELEMARK, HELSEFINNMVitenskapelig artikkel